Car-door.



J. F. CUMEE.

GAR DOOR.

APPLICATION FILED APR.23, 1912.

LTS@

2 SHBET-SHEBT l.

I. P. CWME'E.

UAR DOOR.

APPLIUATION FILED 1111.23, 1912.

Patented Oct. 21, 1913.

2 SHEETS-SHEET 2.

if Cov/mu..

MBSMHELGOIIE, l' CHICAGO, ILLINOIS, ASSIGNQR T0 COMPANY, 0F CHICAGO,

ILLINOIS, A CQRPORATION (IEl KEINE. A

GAR-DOOR.

intensa.

Specication of Lettere Patent.

Patented Cet. 2l, third.

`To all whom t may concern.'

Be it known that I,'Josnr1i F. Comin, a citizen of the United States, and a resident of the city 01E Chicago, county Iof- Cook, and State of Illinois, have invented certain new and usefull Improvements in' Car-Doors, of which I do declare the following to be a full, clear,- and exact description, reference being had to the accompanying drawing, forming part of this specification.

The; present invention relates more particularly to the door mechanism of railway fre' ht cars, and the invention consists in theleatures of novelty hereinafter described, illustrated in the accompanying drawings and particularly pointed out in the claim at the-end of this specification.

Figure l is a View in elevation show1 ng part of a freight car havingmy invention applied thereto. Fig. 2 is a view in horizontal sectiononline 2 of Fig. l. F1g.'3 is an enlarged detail-view in vertical section on line 3 oim Fig. l. Fig. 4 is a view 1n vertical section of the door on linel of' Fig. 1.. Fig. 5 is an enlarged' detail view in vertical section on line 5 ol Fig.. l. Fig. 6 is an' enlarged detail' view in vertical secu tion on line 6 of `Fig. 1. f

The primary object of my present invention is to provide an vimproved construction of metal door more especially adapted for closing the side entrances ot' railway. freight cars.

Metal doors for railway freight cars have heretofore been employed, butciione of `such doors have met the requirements oi stren h and rigidity as e'ectively as the door einb ying the features characteristic of my present invention. In theconstruction of railway freight cars it is highly desirable that the door shall occupy as little space in the width of the car as possible, as by reducing the thickness of; the door-and particularly its thichess at top greater width in the interior of the car may be obtained, it being understood that the limits cie kwidth. ot a freight car are y'.let'erl mined by its `outside dimensions.

A further obect of my invention is to adored a most edective support tor the car door which will protect the topdat the door and its supporting track from the weather, and which will prevent moisture getting into the car at the back of the trolley traclr.

and bottoni-a A designates the Aside wall of a freight car Aand a denotes the side doorway that is shown as provided with the usual side posts B and B', with a cross lintel C and with a bottom sill D. The lintel C is formed with' @0 a recess c in its louter face and within this recess is set the trolley track E, this track being held in place by suitable through bolts F. As shown, the trolley track E is in the shape of a Zebar, the major portion of which is held within the longitudinal recess c formed in the face of the lintel, this recess serving to protect the trolley track E in great measure from the accumulation of ice, snow and the like, and servingso also to prevent any passage of moisture behind the trolley. track and thence into the car. The horizontal portion@ of the trol- `ley track rests upon the outwardly projectl in lower portion c of the lintel C and is f5 e ectively sustained thereby, while the lower depending flange e of the trolley track is spaced at a distance from the outer tace of the lintel, sudicient to admit the upper edge of thetdoor G. Preferably, the depending` e0 'flange c of the trolley track is formed with inwardly projecting offsets c which,

as the door approaches the closed position, will engage the outwardly projecting offsets g arranged adjacent the upper edge of theI a5 door G and will thus force the door tightly 'toward the lace .of the lintel C. The' odsets e2 and .g will be integral with the trolley Ytraclr and door respectively, and will be forirned by bumping or offsetting the4 a0 metalby means of suitable dies. Similarly, adjacent theflower edge of the door Gr clisets g will be formed, these odsets being adapted to enoage with the inner curved faces of the guide irons lll that are bolted to the car body adjacent the lower edge of the door, as clearly shown in Figs.. ll and t ot the drawings. llenos, it will be seen that as the door is moved to closed position its top and bottom will be forced tightly into@v ward toward the tace ot the doorway by the engagement ci the offsets abovementioned; but as the door is moved toward its open position, these odsets are disengaged and a free sliding of the door is-Y ermitted.

'lo the upper portion o the door Gr are secured the hangers el `that carry at their upper ends the trolley wheels j. 'llhe hangers d Vmay be ci any suitable constructionbut, to adapt them, to the purposes oil my lll@ los .l

present invention,` each of the hangers is formed upon its inner face with a recess j Within which will set one of the corrugations adjacent the upper edge of the door.

My improved door G is preferably formed from sheet steel and in order to give it the requisite rigidity |the central portion of the door is formed with a series of spiral or circular corrugations g3.y I prefer that these corrugations should be of spiral shape, as this shape most eilectively strengthens the body of t-he door. Adjacent the top edge of the door there is formed a rib or corrugation g1 that extends approximately from side to side of the door 4and adjacent the bottom edge of the door there is formed a adjacent the central corrugations g3 to apoint adjacent the horizontal corrugations g4 or' g5. By this arrangement of corrugat-ions very great strength is given to the door and, inasmuch as the inner portions of the diagonal corrugations g6 extend within the top and `bottom line of the central corrugations g3, they most efectively aid in giving rigidity to the upper and lower portions of the door. By forming the central portion of the door with spiral or circular corrugations, and by employing the diagonal corrugations at the upper and lower corners of the door, the same dies can4 be used for the circular co-rrugated portion-of doors of different dimensions, it being only necessary to vary, for doors of materially different sizes, thedies whereby the diagonal corrugations are made. This I regard as a feature of very material advantage, as a large saving in expense of dies is thereby effected,

The door G is formed at its left-hand edge with an outwardly turned integral fiange g8 (See Figs. l, 2 and 5) and in this flange gs may be formed an opening g to receive the fastening whereby the door is locked, such, for example, as a hasp 1 shown in Fig. l of the drawings. The ange g8 also adds materially to the strength of the door. The opposite edge of the door G is formed with an integral, reverted flange g (see Fig. 2) adapted to close over a weather strip M that is bolted to the side post B. Thls weather strip is preferably an angle bar, the free member of which projects rearwardly and is arranged at a suflicient di-stance from the outer wall of the car to permit it to be freely engaged by the reverted ange g11 of the door. The reverted flange g not only affords an eifective guard against the weather, by coperating with the weather strip M, but this flange g also serves to strengthen the corresponding edge of the door. a

By my present invention an exceedingly stron and rigid metal door is provided, and this door may be made sothin that it will occupy but little space in the width of the car.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

A car door, formed of a single thickness of pressed sheet steel, having a circular central portion formed with parallel `curved strengthening corrugations extending from the center of the door outwardly to adjacent the edges thereof and lying in a co-mmon plane, and additional corrugations located entirely outside of and away from said circular central portion, said additional corrugations extending approximately from side to side of the door adjacent but spaced from its upper and lower edges and terminating short of the side edges thereof.

JOSEPH F. COMEE.

Witnesses A ELEANOR HAGENOW, KATHARINE GERLACH.' 

